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1.
FEBS Open Bio ; 13(7): 1154-1163, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-36723270

RESUMO

Fibrosis driven by excessive accumulation of extracellular matrix (ECM) is the hallmark of chronic kidney disease (CKD). Myofibroblasts, which are the cells responsible for ECM production, are activated by cross talk with injured proximal tubule and immune cells. Emerging evidence suggests that alterations in metabolism are not only a feature of but also play an influential role in the pathogenesis of renal fibrosis. The application of omics technologies to cell-tracing animal models and follow-up functional data suggest that cell-type-specific metabolic shifts have particular roles in the fibrogenic response. In this review, we cover the main metabolic reprogramming outcomes in renal fibrosis and provide a future perspective on the field of renal fibrometabolism.


Assuntos
Fibrose , Insuficiência Renal Crônica , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/metabolismo , Insuficiência Renal Crônica/patologia , Insuficiência Renal Crônica/fisiopatologia , Fibrose/complicações , Fibrose/metabolismo , Fibrose/patologia , Fibrose/fisiopatologia , Humanos , Animais , Fosforilação Oxidativa , Glucose/metabolismo , Glutamina/metabolismo , Ácidos Graxos/metabolismo
2.
Gastroenterol. latinoam ; 34(2): 61-65, 2023. ilus
Artigo em Espanhol | LILACS | ID: biblio-1524718

RESUMO

We report a clinical case from a patient with alcoholic cirrhosis who had chronic anemia and carried out several endoscopic studies without evidence of active bleeding, a complementary study with endoscopic capsule was requested to search for a source of bleeding. In the analysis of laboratory data, the presence of hypereosinophilia stands out in parallel. The images obtained in the video capsule study show geoparasites helminth-type. After parasite treatment, anemia improves and the absolute eosinophil count is normalized.


Reportamos el caso de un paciente cirrótico por alcohol con anemia crónica quien se realizó varios estudios endoscópicos sin evidencia de sangrado activo, por tal motivo se solicitó estudio complementario con cápsula endoscópica para búsqueda de fuente de sangrado. En el análisis de los datos de laboratorio paralelamente destaca la presencia de hipereosinofilia. Las imágenes obtenidas en el estudio de la video cápsula muestran varios geoparásitos de tipo helmintos. Posterior al tratamiento antiparasitario mejora la anemia y se normaliza el recuento absoluto de eosinófilos.


Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Hemorragia Gastrointestinal/etiologia , Enteropatias Parasitárias/diagnóstico , Fibrose/complicações , Eosinófilos , Hemorragia Gastrointestinal/diagnóstico , Anemia/complicações , Intestinos/parasitologia
3.
Sci Rep ; 12(1): 1739, 2022 02 02.
Artigo em Inglês | MEDLINE | ID: mdl-35110630

RESUMO

Heart failure (HF) admission is a dominant contributor to morbidity and healthcare costs in dilated cardiomyopathy (DCM). Mid-wall striae (MWS) fibrosis by late gadolinium enhancement (LGE) imaging has been associated with elevated arrhythmia risk. However, its capacity to predict HF-specific outcomes is poorly defined. We investigated its role to predict HF admission and relevant secondary outcomes in a large cohort of DCM patients. 719 patients referred for LGE MRI assessment of DCM were enrolled and followed for clinical events. Standardized image analyses and interpretations were conducted inclusive of coding the presence and patterns of fibrosis observed by LGE imaging. The primary clinical outcome was hospital admission for decompensated HF. Secondary heart failure and arrhythmic composite endpoints were also studied. Median age was 57 (IQR 47-65) years and median LVEF 40% (IQR 29-47%). Any fibrosis was observed in 228 patients (32%) with MWS fibrosis pattern present in 178 (25%). At a median follow up of 1044 days, 104 (15%) patients experienced the primary outcome, and 127 (18%) the secondary outcome. MWS was associated with a 2.14-fold risk of the primary outcome, 2.15-fold risk of the secondary HF outcome, and 2.23-fold risk of the secondary arrhythmic outcome. Multivariable analysis adjusting for all relevant covariates, inclusive of LVEF, showed patients with MWS fibrosis to experience a 1.65-fold increased risk (95% CI 1.11-2.47) of HF admission and 1-year event rate of 12% versus 7% without this phenotypic marker. Similar findings were observed for the secondary outcomes. Patients with LVEF > 35% plus MWS fibrosis experienced similar event rates to those with LVEF ≤ 35%. MWS fibrosis is a powerful and independent predictor of clinical outcomes in patients with DCM, identifying patients with LVEF > 35% who experience similar event rates to those with LVEF below this conventionally employed high-risk phenotype threshold.


Assuntos
Cardiomiopatia Dilatada , Fibrose , Insuficiência Cardíaca , Idoso , Cardiomiopatia Dilatada/diagnóstico por imagem , Cardiomiopatia Dilatada/patologia , Estudos de Coortes , Feminino , Fibrose/complicações , Fibrose/patologia , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/patologia , Humanos , Aumento da Imagem , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Miocárdio/patologia
4.
J Appl Physiol (1985) ; 132(3): 653-672, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-35050792

RESUMO

In Duchenne muscular dystrophy (DMD), diaphragm muscle dysfunction results in respiratory insufficiency, a leading cause of death in patients. Increased muscle stiffness occurs with buildup of fibrotic tissue, characterized by excessive accumulation of extracellular matrix (ECM) components such as collagen, and prevents the diaphragm from achieving the excursion lengths required for respiration. However, changes in mechanical properties are not explained by collagen amount alone and we must consider the complex structure and mechanics of fibrotic tissue. The goals of our study were to 1) determine if and how collagen organization changes with the progression of DMD in diaphragm muscle tissue and 2) predict how collagen organization influences the mechanical properties of the ECM. We first visualized collagen structure with scanning electron microscopy (SEM) images and then developed an analysis framework to quantify collagen organization and generate image-based finite-element models. Image analysis revealed increased collagen fiber straightness and alignment in mdx over wild type (WT) at 3 mo (straightness: mdx = 0.976 ± 0.0108, WT = 0.887 ± 0.0309, alignment: mdx = 0.876 ± 0.0333, WT = 0.759 ± 0.0416) and 6 mo (straightness: mdx = 0.942 ± 0.0182, WT = 0.881 ± 0.0163, alignment: mdx = 0.840 ± 0.0315, WT = 0.759 ± 0.0368). Collagen fibers retained a transverse orientation relative to muscle fibers (70°-90°) in all groups. Mechanical models predicted an increase in the transverse relative to longitudinal (muscle fiber direction) stiffness, with stiffness ratio (transverse/longitudinal) increased in mdx over WT at 3 mo (mdx = 5.45 ± 2.04, WT = 1.97 ± 0.670) and 6 mo (mdx = 4.05 ± 0.985, WT = 1.96 ± 0.506). This study revealed changes in diaphragm ECM structure and mechanics during disease progression in the mdx muscular dystrophy mouse phenotype, highlighting the need to consider the role of collagen organization on diaphragm muscle function.NEW & NOTEWORTHY Scanning electron microscopy images of decellularized diaphragm muscle from WT and mdx, Duchenne muscular dystrophy model, mice revealed that collagen fibers in the epimysium are oriented transverse to muscle fibers, with age- and disease-dependent changes in collagen arrangement. Finite-element models generated from these images predicted that changes in collagen arrangement during disease progression influence the mechanical properties of the extracellular matrix. Thus, changes in collagen fiber-level structure are implicated on tissue-level properties during fibrosis.


Assuntos
Colágeno , Diafragma , Fibrose , Distrofia Muscular de Duchenne , Animais , Colágeno/ultraestrutura , Diafragma/patologia , Modelos Animais de Doenças , Fibrose/complicações , Fibrose/patologia , Humanos , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Endogâmicos mdx , Microscopia Eletrônica de Varredura , Distrofia Muscular de Duchenne/complicações , Distrofia Muscular de Duchenne/patologia
5.
Reprod Biol Endocrinol ; 20(1): 9, 2022 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-34996477

RESUMO

BACKGROUND: Intrauterine adhesion (IUA) is one of the leading causes of infertility and the main clinical challenge is the high recurrence rate. The key to solving this dilemma lies in elucidating the mechanisms of endometrial fibrosis. The aim of our team is to study the mechanism underlying intrauterine adhesion fibrosis and the origin of fibroblasts in the repair of endometrial fibrosis. METHODS: Our experimental study involving an animal model of intrauterine adhesion and detection of fibrosis-related molecules. The levels of molecular factors related to the endothelial-to-mesenchymal transition (EndMT) were examined in a rat model of intrauterine adhesion using immunofluorescence, immunohistochemistry, qPCR and Western blot analyses. Main outcome measures are levels of the endothelial marker CD31 and the mesenchymal markers alpha-smooth muscle actin (α-SMA) and vimentin. RESULTS: Immunofluorescence co-localization of CD31 and a-SMA showed that 14 days after moulding, double positive cells for CD31 and a-SMA could be clearly observed in the endometrium. Decreased CD31 levels and increased α-SMA and vimentin levels indicate that EndMT is involved in intrauterine adhesion fibrosis. CONCLUSIONS: Endothelial cells promote the emergence of fibroblasts via the EndMT during the endometrial fibrosis of intrauterine adhesions.


Assuntos
Endométrio/patologia , Transição Epitelial-Mesenquimal/fisiologia , Miofibroblastos/patologia , Doenças Uterinas/etiologia , Animais , Modelos Animais de Doenças , Feminino , Fibrose/complicações , Humanos , Ratos , Ratos Sprague-Dawley , Aderências Teciduais/etiologia , Doenças Uterinas/patologia
6.
Histopathology ; 80(4): 665-676, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34747513

RESUMO

AIMS: Idiopathic pleuroparenchymal fibroelastosis (PPFE) is a rare type of idiopathic interstitial pneumonia, and pathological PPFE is also observed in patients with secondary interstitial pneumonia. This study aimed to evaluate the pathological findings associated with radiological PPFE-like lesions and the clinical and morphological features of patients with pathological PPFE. METHODS AND RESULTS: We retrospectively reviewed the pathology of the explanted lungs from 59 lung transplant recipients with radiological PPFE-like lesions. Pathological PPFE lesions were identified in 14 patients with idiopathic disease and in 12 patients with secondary disease. Pathological PPFE was associated with previous pneumothorax, volume loss in the upper lobes, and a flattened chest. Patients with idiopathic disease and those with secondary disease with pathological PPFE had similar clinical, radiological and pathological findings, whereas fibroblastic foci were more common in patients with idiopathic disease, and patients with secondary disease more frequently showed alveolar septal thickening with elastosis or fibrosis. Post-transplantation survival did not differ between patients with idiopathic and secondary disease with pathological PPFE (log-rank; P = 0.57) and was similar between patients with idiopathic disease with pathological PPFE and those with idiopathic pulmonary fibrosis (IPF) (log-rank; P = 0.62). CONCLUSIONS: Not all patients with interstitial pneumonia with radiological PPFE-like lesions have pathological PPFE. Characteristic clinical features can suggest the presence of pathological PPFE, and idiopathic and secondary cases with pathological PPFE are similar except for fibroblastic foci in idiopathic cases and alveolar septal thickening with elastosis or fibrosis in secondary cases. Patients with pathological PPFE have a similar prognosis to those with IPF after transplantation.


Assuntos
Doenças Pulmonares Intersticiais/diagnóstico , Transplante de Pulmão , Tecido Parenquimatoso/patologia , Pleura/patologia , Adulto , Feminino , Fibrose/complicações , Humanos , Doenças Pulmonares Intersticiais/complicações , Doenças Pulmonares Intersticiais/diagnóstico por imagem , Doenças Pulmonares Intersticiais/patologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
7.
JCI Insight ; 7(3)2022 02 08.
Artigo em Inglês | MEDLINE | ID: mdl-34941574

RESUMO

Discoidin domain receptor 1 (DDR1), a receptor tyrosine kinase activated by collagen, contributes to chronic kidney disease. However, its role in acute kidney injury and subsequent development of kidney fibrosis is not clear. Thus, we performed a model of severe ischemia/reperfusion-induced acute kidney injury that progressed to kidney fibrosis in WT and Ddr1-null mice. We showed that Ddr1-null mice had reduced acute tubular injury, inflammation, and tubulointerstitial fibrosis with overall decreased renal monocyte chemoattractant protein (MCP-1) levels and STAT3 activation. We identified breakpoint cluster region (BCR) protein as a phosphorylated target of DDR1 that controls MCP-1 production in renal proximal tubule epithelial cells. DDR1-induced BCR phosphorylation or BCR downregulation increased MCP-1 secretion, suggesting that BCR negatively regulates the levels of MCP-1. Mechanistically, phosphorylation or downregulation of BCR increased ß-catenin activity and in turn MCP-1 production. Finally, we showed that DDR1-mediated STAT3 activation was required to stimulate the secretion of TGF-ß. Thus, DDR1 contributes to acute and chronic kidney injury by regulating BCR and STAT3 phosphorylation and in turn the production of MCP-1 and TGF-ß. These findings identify DDR1 an attractive therapeutic target for ameliorating both proinflammatory and profibrotic signaling in kidney disease.


Assuntos
Receptor com Domínio Discoidina 1/genética , Regulação da Expressão Gênica , Inflamação/complicações , Túbulos Renais Proximais/metabolismo , Proteínas Proto-Oncogênicas c-bcr/genética , RNA/genética , Fator de Transcrição STAT3/genética , Injúria Renal Aguda , Animais , Linhagem Celular , Células Cultivadas , Receptor com Domínio Discoidina 1/biossíntese , Feminino , Fibrose/complicações , Fibrose/genética , Fibrose/patologia , Inflamação/genética , Inflamação/patologia , Túbulos Renais Proximais/patologia , Masculino , Camundongos , Camundongos Knockout , Fosforilação , Proteínas Proto-Oncogênicas c-bcr/biossíntese , Fator de Transcrição STAT3/biossíntese , Transdução de Sinais
8.
J Hepatol ; 76(1): 202-207, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34157322

RESUMO

There is a universal agreement that the occurrence of clinical complications, such as ascites, hepatic encephalopathy, gastrointestinal bleeding, and jaundice mark the transition from the compensated to the decompensated stage of cirrhosis. Decompensation is associated with a substantial worsening of patient prognosis and is therefore considered the most important stratification variable for the risk of death. However, this classification is an oversimplification, as it does not discriminate between the prognostic subgroups that characterise the course of decompensation, which depends on the type and number of decompensating events. A deeper insight into the clinical course of decompensated cirrhosis is provided by observational studies characterising acute decompensation (AD), which occurs mostly in patients who have already experienced decompensating events. Decompensation presents as AD in a portion of patients while in many others it presents as a slow development of ascites or mild grade 1 or 2 hepatic encephalopathy, or jaundice, not requiring hospitalisation. Thus, we propose that decompensation of cirrhosis occurs through 2 distinct pathways: a non-acute and an acute (which includes acute-on-chronic liver failure) pathway. Moreover, while non-acute decompensation is the most frequent pathway of the first decompensation, AD mostly represents further decompensation.


Assuntos
Deterioração Clínica , Fibrose/fisiopatologia , Ascite/etiologia , Ascite/fisiopatologia , Fibrose/complicações , Hemorragia Gastrointestinal/etiologia , Hemorragia Gastrointestinal/fisiopatologia , Encefalopatia Hepática/etiologia , Encefalopatia Hepática/fisiopatologia , Humanos , Índice de Gravidade de Doença
9.
Sci Rep ; 11(1): 23538, 2021 12 07.
Artigo em Inglês | MEDLINE | ID: mdl-34876608

RESUMO

This study investigated the correlation between pancreatic fibrosis (PF) and development of pancreoprivic diabetes after pancreaticoduodenectomy (PD). Ninety-five patients who underwent PD at Gangnam Severance Hospital between 2014 and 2017 were enrolled. PF grade was evaluated with alpha-smooth muscle actin (SMA) and Masson's trichrome (TRC) staining. New-onset pancreoprivic diabetes and recurrence of disease were evaluated using fasting blood glucose measurement and radiography taken at 3-month intervals. Sixty-one patients did not have preoperative diabetes, however, 40 (65.6%) patients developed pancreoprivic diabetes after PD. High-grade PF was more common in the diabetes group than in the normal group (SMA, 42.5% vs. 28.6%, P = 0.747; TRC, 47.5% vs. 28.6%, P = 0.361). The 1-year cumulative incidence of hyperglycemia/pancreoprivic diabetes was higher with high-grade PF than low-grade PF (SMA, 94.4% vs. 73.0%, P = 0.027; TRC, 89.3% vs. 75.0%, P = 0.074). The SMA-TRC combined high-grade group had a higher proportion of primary pancreatic disease than the combined low-grade group (90.0% vs. 37.5%, P = 0.001). The 5-year disease-free survival of patients with pancreatic cancer was worse with high-grade PF than low-grade PF (SMA, 24.5% vs. 66.3%, P = 0.026; TRC, 23.6% vs. 58.4%, P = 0.047). In conclusion, patients with severe PF are more likely to develop pancreoprivic diabetes after PD and have worse disease-free survival.


Assuntos
Diabetes Mellitus/etiologia , Fibrose/complicações , Fibrose/cirurgia , Pancreatopatias/complicações , Pancreatopatias/cirurgia , Pancreaticoduodenectomia/efeitos adversos , Glicemia/metabolismo , Diabetes Mellitus/metabolismo , Intervalo Livre de Doença , Feminino , Fibrose/metabolismo , Humanos , Masculino , Pessoa de Meia-Idade , Pâncreas/metabolismo , Pâncreas/cirurgia , Pancreatopatias/metabolismo
10.
Cells ; 10(12)2021 12 02.
Artigo em Inglês | MEDLINE | ID: mdl-34943909

RESUMO

Systemic sclerosis (SSc) is a chronic connective tissue disorder characterized by immune dysregulation, chronic inflammation, vascular endothelial cell dysfunction, and progressive tissue fibrosis of the skin and internal organs. Moreover, increased cancer incidence and accelerated aging are also found. The increased cancer incidence is believed to be a result of chromosome instability. Accelerated cellular senescence has been confirmed by the shortening of telomere length due to increased DNA breakage, abnormal DNA repair response, and telomerase deficiency mediated by enhanced oxidative/nitrative stresses. The immune dysfunctions of SSc patients are manifested by excessive production of proinflammatory cytokines IL-1, IL-6, IL-17, IFN-α, and TNF-α, which can elicit potent tissue inflammation followed by tissue fibrosis. Furthermore, a number of autoantibodies including anti-topoisomerase 1 (anti-TOPO-1), anti-centromere (ACA or anti-CENP-B), anti-RNA polymerase enzyme (anti-RNAP III), anti-ribonuclear proteins (anti-U1, U2, and U11/U12 RNP), anti-nucleolar antigens (anti-Th/T0, anti-NOR90, anti-Ku, anti-RuvBL1/2, and anti-PM/Scl), and anti-telomere-associated proteins were also found. Based on these data, inflamm-aging caused by immune dysfunction-mediated inflammation exists in patients with SSc. Hence, increased cellular senescence is elicited by the interactions among excessive oxidative stress, pro-inflammatory cytokines, and autoantibodies. In the present review, we will discuss in detail the molecular basis of chromosome instability, increased oxidative stress, and functional adaptation by deranged immunome, which are related to inflamm-aging in patients with SSc.


Assuntos
Envelhecimento/genética , Fibrose/genética , Inflamação/genética , Escleroderma Sistêmico/genética , Envelhecimento/imunologia , Envelhecimento/patologia , Autoanticorpos/imunologia , Células Endoteliais/patologia , Fibrose/complicações , Fibrose/imunologia , Fibrose/patologia , Humanos , Doenças do Sistema Imunitário/complicações , Doenças do Sistema Imunitário/genética , Doenças do Sistema Imunitário/imunologia , Doenças do Sistema Imunitário/patologia , Inflamação/complicações , Inflamação/imunologia , Inflamação/patologia , Mediadores da Inflamação , Escleroderma Sistêmico/complicações , Escleroderma Sistêmico/imunologia , Escleroderma Sistêmico/patologia , Dermatopatias/complicações , Dermatopatias/genética , Dermatopatias/imunologia , Dermatopatias/patologia
11.
Sci Rep ; 11(1): 21639, 2021 11 04.
Artigo em Inglês | MEDLINE | ID: mdl-34737270

RESUMO

Spontaneous bacterial peritonitis (SBP) is a life-threatening complication in patients with cirrhosis. We aimed to develop an explainable machine learning model to achieve the early prediction and outcome interpretation of SBP. We used CatBoost algorithm to construct MODEL-1 with 46 variables. After dimensionality reduction, we constructed MODEL-2. We calculated and compared the sensitivity and negative predictive value (NPV) of MODEL-1 and MODEL-2. Finally, we used the SHAP (SHapley Additive exPlanations) method to provide insights into the model's outcome or prediction. MODEL-2 (AUROC: 0.822; 95% confidence interval [CI] 0.783-0.856), liked MODEL-1 (AUROC: 0.822; 95% CI 0.784-0.856), could well predict the risk of SBP in cirrhotic ascites patients. The 6 most influential predictive variables were total protein, C-reactive protein, prothrombin activity, cholinesterase, lymphocyte ratio and apolipoprotein A1. For binary classifier, the sensitivity and NPV of MODEL-1 were 0.894 and 0.885, respectively, while for MODEL-2 they were 0.927 and 0.904, respectively. We applied CatBoost algorithm to establish a practical and explainable prediction model for risk of SBP in cirrhotic patients with ascites. We also identified 6 important variables closely related to the occurrence of SBP.


Assuntos
Previsões/métodos , Cirrose Hepática/microbiologia , Peritonite/microbiologia , Adulto , Ascite/complicações , Infecções Bacterianas/epidemiologia , Proteína C-Reativa/metabolismo , Feminino , Fibrose/complicações , Humanos , Cirrose Hepática/complicações , Aprendizado de Máquina , Masculino , Pessoa de Meia-Idade , Modelos Teóricos , Valor Preditivo dos Testes
12.
J Diabetes Res ; 2021: 9589185, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34778465

RESUMO

Type 2 diabetes mellitus (T2DM) and chronic heart failure (HF) have close association, and several biomarkers have been studied to better understand this association and improve prediction of HF in T2DM. Furthermore, in recent clinical trials, sodium glucose cotransporter 2 inhibitors (SGLT2i), glucose-lowering drugs, improved HF outcomes. The objective of the present study was to evaluate association between circulating biomarkers of fibrosis and incidence of HF with preserved ejection fraction (HFpEF) in patients with T2DM receiving sodium glucose cotransporter 2 inhibitors (SGLT2i). Materials and Methods. At baseline, transthoracic echocardiography and laboratory assessment of N-terminal fragment of the brain natriuretic peptide (Nt-proBNP), soluble suppression of tumorigenesis-2 (sST2), galectin-3 (Gal-3), C-terminal propeptide of procollagen type I (PICP), N-terminal propeptide of procollagen type III (PIIINP), matrix metalloproteinase-9 (MMP-9), and tissue inhibitor of matrix proteinase-1 (TIMP-1) were done. After 3 years of follow-up, information about HF events (hospitalization for HF, established HF in outpatient department by a cardiologist) was obtained. Results. Seventy-two patients were included in the study. The mean age was 57 (49.7; 63.2) years; 44% were female. Most patients had T2DM for more than 4 years. All patients were overweight or had obesity, and 93% patients had arterial hypertension (AH). After 3 years of follow-up, HFpEF was established in 21% patients. Patients were divided into two groups according to the presence of HFpEF, and baseline characteristics were compared. Patients with HF were older and had longer diabetes and AH duration and higher Nt-proBNP, Gal-3, PIIINP, and PICP levels at baseline than patients without HF (all p < 0.05). Gal - 3 > 10 ng/ml (OR = 2.25; 95% CI, 1.88-5.66; p = 0.01) and NT - pro - BNP > 80 pg/ml (OR = 2.64; 95% CI, 1.56-4.44; p = 0.001) were associated with increased risk of HF incidence. Age > 60 years, diabetes duration > 10 years, and presence of abdominal obesity were independent predictors of HFpEF as well. Conclusions. T2DM patients treated with SLGT2i, who developed HFpEF after 3 years of follow-up, had higher PICP, PIIINP, Gal-3, and NT-proBNP serum concentrations at baseline, and Gal-3 level was an independent predictor of HFpEF.


Assuntos
Biomarcadores/análise , Diabetes Mellitus Tipo 2/sangue , Fibrose/sangue , Insuficiência Cardíaca/sangue , Idoso , Biomarcadores/sangue , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Feminino , Fibrose/complicações , Fibrose/epidemiologia , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/epidemiologia , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Inibidores do Transportador 2 de Sódio-Glicose/farmacologia , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico
13.
Dermatol Online J ; 27(8)2021 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-34755957

RESUMO

BACKGROUND: In central centrifugal cicatricial alopecia (CCCA), a lymphocytic scarring alopecia that primarily affects black women, it has been postulated that there is a "pro-fibrotic" tendency and increased risk for systemic fibroproliferative disorders. OBJECTIVE: To determine whether women with biopsy-proven CCCA have a greater likelihood of systemic fibroproliferative disorders (FPDs) of the lungs (interstitial lung disease), arteries (atherosclerosis of the aorta), liver (non-alcoholic steatohepatitis), kidney (end stage renal disease), or uterus (uterine leiomyoma). METHODS: We conducted a retrospective matched cohort study evaluating 427 cases with biopsy-proven CCCA and 1281 age- and sex-matched controls. RESULTS: Black women with biopsy-proven CCCA, were not more likely to have interstitial lung disease (ILD), atherosclerosis of the aorta, non-alcoholic steatohepatitis (NASH), end stage renal disease (ESRD), or uterine leiomyoma. Central centrifugal cicatricial alopecia was associated with a history of never smoking and higher body mass index. CONCLUSION: In this large cohort of biopsy-proven women with CCCA, there was no association with specific fibroproliferative disorders when compared with age and sex matched controls. Future longitudinal studies may help confirm these results.


Assuntos
Alopecia/patologia , Negro ou Afro-Americano , Cicatriz/patologia , Fibrose/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Alopecia/complicações , Alopecia/etnologia , Índice de Massa Corporal , Feminino , Fibrose/complicações , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Couro Cabeludo/patologia
14.
Cell Death Dis ; 12(11): 996, 2021 10 25.
Artigo em Inglês | MEDLINE | ID: mdl-34697288

RESUMO

Chronic pancreatitis (CP) is described as progressive inflammatory fibrosis of pancreas, accompanied with irreversible impaired endocrine and exocrine insufficiency. Pancreatic stellate cells (PSCs) are widely distributed in the stroma of the pancreas and PSCs activation has been shown as one of the leading causes for pancreatic fibrosis. Our previous study has revealed that autophagy is dramatically activated in CP tissues, which facilitates PSCs activation and pancreatic fibrosis. Long non-coding RNAs (LncRNAs) have been recognized as crucial regulators for fibrosis-related diseases. LncRNAs interact with RNA binding protein or construct competitive endogenous RNA (ceRNA) hypothesis which elicited the fibrotic processes. Until now, the effects of lncRNAs on PSCs activation and pancreatic fibrosis have not been clearly explored. In this study, a novel lncRNA named Lnc-PFAR was found highly expressed in mouse and human CP tissues. Our data revealed that Lnc-PFAR facilitates PSCs activation and pancreatic fibrosis via RB1CC1-induced autophagy. Lnc-PFAR reduces miR-141 expression by suppressing pre-miR-141 maturation, which eventually upregulates the RB1CC1 and fibrosis-related indicators expression. Meanwhile, Lnc-PFAR enhanced PSCs activation and pancreatic fibrosis through trigging autophagy. Our study interrogates a novel lncRNA-induced mechanism in promoting the development of pancreatic fibrosis, and Lnc-PFAR is suggested to be a prospective therapeutic target in clinical scenarios.


Assuntos
Fibrose/complicações , MicroRNAs/metabolismo , Pancreatite Crônica/genética , RNA Longo não Codificante/metabolismo , Animais , Autofagia , Estudos de Casos e Controles , Doença Crônica , Modelos Animais de Doenças , Humanos , Camundongos , Pancreatite Crônica/patologia
17.
Am J Trop Med Hyg ; 105(6): 1544-1551, 2021 09 27.
Artigo em Inglês | MEDLINE | ID: mdl-34583328

RESUMO

The global burden of dengue is increasing against a background of rising global prevalence of chronic noncommunicable diseases (NCDs) and an epidemiological shift of dengue toward older age groups. The contribution of NCDs toward risk for adverse clinical and healthcare utilization outcomes was assessed in a national linked-database study. About 51,433 adult dengue cases between 2014 and 2015 were assessed for outpatient and inpatient claims data in Taiwan's National Health Insurance Research Database for the 30 days after their dengue diagnosis. A multivariable logistic regression with generalized estimating equations was used to estimate the probability of adverse dengue outcomes in patients with NCDs compared with dengue patients without underlying diseases. Rheumatoid arthritis and related disease were associated with the highest risk of hospitalization after dengue diagnosis (odds ratio: 1.78; 95% CI: 1.37-2.30), followed by stroke, chronic kidney disease (CKD), liver cirrhosis, asthma, coronary artery disease, chronic obstructive pulmonary disease, diabetes, congestive heart failure, hypertension, and malignancy. Chronic kidney disease and diabetes were associated with higher risks of hospitalization, intensive care unit (ICU) use, and all-cause mortality. After adjusting for socioeconomic status and other variables, the number of coexisting chronic diseases was associated with increasing risk of adverse dengue outcomes. Specific NCDs were associated with longer hospitalizations, ICU admission, and higher healthcare costs. Quantifying the risks of adverse dengue outcomes and health expenditures among dengue patients with preexisting NCDs provides insights for improved clinical management and essential inputs for health economic analyses on the cost-benefit of risk-based routine or catch-up immunization programs.


Assuntos
Dengue/complicações , Dengue/mortalidade , Adulto , Idoso , Artrite Reumatoide/complicações , Asma/complicações , Doença Crônica , Estudos de Coortes , Comorbidade , Feminino , Fibrose/complicações , Insuficiência Cardíaca/complicações , Doenças Hematológicas/complicações , Hospitalização/economia , Humanos , Unidades de Terapia Intensiva/economia , Tempo de Internação/economia , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Doença Pulmonar Obstrutiva Crônica/complicações , Insuficiência Renal Crônica/complicações , Fatores de Risco , Acidente Vascular Cerebral/complicações
18.
Medicine (Baltimore) ; 100(38): e27231, 2021 Sep 24.
Artigo em Inglês | MEDLINE | ID: mdl-34559118

RESUMO

BACKGROUND: Hepatitis B cirrhosis with hyperalphafetoproteinemia is the intermediate stage of liver cirrhosis progressing to hepatocellular carcinoma (HCC), there is no effective way to treat precancerous lesions of liver in modern medicine. In recent decades, clinical and experimental evidence shows that Chinese medicine (CM) has a certain beneficial effect on Hepatitis B Cirrhosis. Therefore, this trial aims to evaluate the efficacy and safety of a CM erzhu jiedu recipe (EZJDR) for the treatment of Hepatitis B Cirrhosis with Hyperalphafetoproteinemia. METHODS: We designed a randomized, double blind, placebo-controlled clinical trial. A total of 72 patients of Hepatitis B Cirrhosis with hyperalphafetoproteinemia were randomized in 2 parallel groups. Patients in the control group received placebo granules similar to the EZJDR. In the EZJDR group, patients received EZJDR twice a day, after meals, for 48 weeks. The primary efficacy measures were changes in serum alpha-fetoprotein (AFP) and alpha-fetoprotein alloplasm (AFP-L3); The secondary indicators of efficacy are changes in liver function indicators, HBV-DNA level; Liver stiffness measurement (LSM); Hepatic portal vein diameter; T lymphocyte subgroup indexes during treatment. All data will be recorded in case report forms and analyzed by Statistical Analysis System software. Adverse events will also be evaluated. RESULTS: The results showed that EZJDR can significantly inhibit the levels of AFP and AFP-L3 in patients with hepatitis B cirrhosis and hyperalphafetoproteinemia and have good security. ETHICS AND DISSEMINATION: The study protocol was approved by the Medical Ethics Committee of Shuguang Hospital, affiliated with University of Traditional Chinese Medicine, Shanghai (NO.2018-579-08-01). TRIAL REGISTRATION: This trial was registered on Chinese Clinical Trial Center (NO.ChiCTR1800017165).


Assuntos
Proteínas de Transferência de Ésteres de Colesterol/deficiência , Erros Inatos do Metabolismo Lipídico/tratamento farmacológico , Erros Inatos do Metabolismo Lipídico/etiologia , Medicina Tradicional Chinesa/normas , Distribuição de Qui-Quadrado , Método Duplo-Cego , Fibrose/complicações , Fibrose/tratamento farmacológico , Hepatite B/complicações , Hepatite B/tratamento farmacológico , Humanos , Medicina Tradicional Chinesa/métodos , Medicina Tradicional Chinesa/estatística & dados numéricos , Placebos
19.
J Hepatol ; 75(6): 1367-1376, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34333101

RESUMO

BACKGROUND & AIMS: Portal vein thrombosis (PVT) is a relatively frequent event in patients with cirrhosis. While different risk factors for PVT have been reported, such as decreased portal blood flow velocity (PBFV) and parameters related with severity of portal hypertension, these are based on retrospective studies assessing only a discrete number of parameters. The aim of the current study was to evaluate the incidence and risks factors for non-tumoral PVT development in a large prospective cohort of patients with cirrhosis. METHODS: We performed an exhaustive evaluation of clinical, biochemical, inflammatory and acquired/hereditary hemostatic profiles in 369 patients with cirrhosis without PVT who were prospectively followed-up. Doppler ultrasound was performed at baseline and every 6 months or whenever clinically indicated. PVT development was always confirmed by computed tomography. RESULTS: Twenty-nine patients developed non-tumoral PVT, with an incidence of 1.6%, 6% and 8.4% at 1, 3 and 5 years, respectively. Low platelet count, PBFV <15 cm/sec and history of variceal bleeding were factors independently associated with a high PVT risk. No relationship between PVT development and any other clinical biochemical, inflammatory and acquired or hereditary hemostatic parameter was found. CONCLUSIONS: In patients with cirrhosis, the factors predictive of PVT development were mainly those related to the severity of portal hypertension. Our results do not support the role of hemostatic alterations (inherited or acquired) and inflammatory markers in the prediction of PVT in patients with cirrhosis. LAY SUMMARY: Patients with cirrhosis and more severe portal hypertension are at higher risk of non-tumoral portal vein thrombosis development. Acquired or inherited hemostatic disorders, as well as inflammatory status, do not seem to predict the development of portal vein thrombosis in patients with cirrhosis.


Assuntos
Fibrose/complicações , Hemostáticos/uso terapêutico , Veia Porta/diagnóstico por imagem , Ultrassonografia/métodos , Trombose Venosa/líquido cefalorraquidiano , Idoso , Feminino , Fibrose/sangue , Fibrose/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Veia Porta/fisiopatologia , Estudos Prospectivos , Estudos Retrospectivos , Fatores de Risco , Ultrassonografia/estatística & dados numéricos , Trombose Venosa/diagnóstico por imagem
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